Leviticus 13:28
And if the bright spot stay in his place, and spread not in the skin, but it be somewhat dark; it is a rising of the burning, and the priest shall pronounce him clean: for it is an inflammation of the burning. And if the bright spot stay in his place, and spread not in the skin, but it be somewhat dark; it is a rising of the burning, and the priest shall pronounce him clean: for it is an inflammation of the burning.
The bright spot from a burn that stays in its place and does not spread in the skin but is somewhat dark is a rising of the burning, an inflammation of the burn, and the priest is to pronounce the person clean, and this is the rule for judging such skin conditions within the instructions concerning leprosy and related conditions. The ruling belongs to the laws regulating uncleanness, leprosy and cleansing, including the instructions on leprosy and related skin conditions in Leviticus 13-14 and the law of cleansing in Leviticus 12-15. Visible signs of physical uncleanness had to be assessed and dealt with before the sanctuary's ceremonial cleansing with blood, as if the affected person or object had to be visibly clean before its real cleansing.
It is counted among the laws of the Levitical dispensation, with Leviticus 1-16 belonging to the annual sanctuary service that typified Christ's priesthood, while its specific ruling about the burn and the priest pronouncing clean is left without further explanation there. It is part of laws requiring proper precautions that recognize God as healer while requiring care to protect the people. As part of the sanitary laws given through Moses, it still stands at the head of all sanitary law, and that superiority proves divine guidance and divine inspiration. It is cited as one of the cleansing truths given to ancient Israel that Christians should not abandon.
Leprosy in this legislation is a fitting type, picture and figure of sin, even mortal sin in its utmost loathsomeness, and of Christ's power to heal. Sin is the transgression of the law and all unrighteousness, a short word embracing every kind of evil thing. Like leprosy it is a pervasive, infectious, incurable and consuming moral disease that never gets well of itself, with its chief seat within polluting the source of life as well as making the outward person shameful, and it is a dreadful spiritual sickness needing healing. Like leprosy the disease of sin is contagious, so the sinner contaminates the very atmosphere and introduces pollution where all before was comparative purity, and association with him leads others to sin and is more to be feared than the infection of the leper.
Human means cannot cure this condition; cleansing from sin comes only through Christ the great Physician, whose blood cleanses those who repent and believe. The same loathsome leprosy known in the days of Moses is still prevalent in the Holy Land, and with the other unchanged diseases of the land it bears witness to the truth of Scripture.